Improvement in roofing



To all 'whom it may concern:

UNITED STATES PATENT OFFICE.

JOHN MCVAY, OF COLUMBIA, OHIO.

IMPROVEMENT IN RooFlNG.

Specitication forming part of Letters Patent No. 53,162, dated March 13, 1866.

Beit known that I, JOHN MCVAYmf Columbia, I lamilton county, Ohio, have invented a new and useful Improvement in Board -Root's; and I do hereby declare the. following to bea t'ull,clear,a1ul exact description thereof', reference being had to the accolupanyiug (lrawings, making part ot' this specification.

Myinventiou relates to the class of' roofs Y which consist of a series ofboards whose joints or interstices are closed by metallic tongues or strips, which serve also to conduct ott' whatever water may enter the interstices; and my invention consists in amore simple, effective, and enduring mode of constructing such roofs.

Figure 1 represents a portion of a car or other roof embodying my invention. Fig. 2 is an end view of a board with the tongue insei-ted. Fin'. 3 is a perspective representation ofthe end ot' a board prepared to receive t-he tongue.

A represents a portion of' the body-timbers ot' a railroad-car. B are boards. in whose edges are formed grooves C and kerts D\vhieh penetrate the substance of the board obliquely upward, and receive angle-strips, tongues, or gutters E, ot' sheet metal which has been pre vously bent to an angle slightly more acute than the angles ot' the kert's D. These gutters, being inserted inthe act of putting up the vroof and the. boardsbeing driven snugly together, the whole forms, as it were, a singe compact sheathing, the glitters operating as tongues to hold the boards immovably to one `sag away from the. boards, and is thus free from a defect incident to previous devices of this class, which, although specially supported at intervals by wooden or other purlins, yet, in time, sag down between their points of support and become useless.

My gutterpieces may be made ot' any suitable sheet metal, such as tin plate, galvanized iron, or copper.

The groove U may be made ot any size or -shape or omitted altogether.

I claim herein as new and ot' my invention-'- The combination ot' the V-shaped troughs E with grooves C and kerfs Din the edges of the boards B, all constructed and arranged in the manner and for the purposes set forth.

In testimony ot' which invention l hereunto set my hand. l

JOHN MCVAY. f

Witnesses Y GEO. H. KNIGHT,-

JAMEs I-I. LAYMAN.

On the other hand, the gutter-pieces, 

